"While Crissy and I will always be grateful for all of the encouragement and support to run for the United States Senate, I am announcing today that I will not be a candidate for Senate in 2018", Haslam said in a statement.
"The fact that our Republican majority in the Senate can not overturn Obamacare, or will not overturn Obamacare, it's a disgrace", she said.
Governor Bill Haslam has announced he's not running for Bob Corker's U.S. Senate seat.
Blackburn, the Brentwood, Tennessee Republican says many senate Republicans act like "Democrats or worse" in a video released Thursday morning.
Former U.S. Rep. Stephen Fincher is another potential Republican Senate candidate, and is expected to make a decision in the coming days.
UBS encouraging Reno blood donations after Vegas shooting
But wait-times in Las Vegas blood centers are up to two hours, and that blood has to be processed before it can be used. Ruben Kihuen, a Democrat whose district includes part of Las Vegas, visited a hospital where some victims were taken.
Andy Ogles, a conservative activist in Franklin, Tennessee, is running against Blackburn for the seat.
Marsha Blackburn campaign announcement.
"It comes as little surprise to those of us here in Tennessee's 7th District that Marsha Blackburn would choose to run for higher office", Kanew, who is avidly against Blackburn wrote.
The congresswoman has cast herself as a strong fiscal conservative during her House tenure.
It was a jaw-dropping critique of the president by an influential senator who has announced he will not seek another term next year.